一种负极极片及其制备方法和应用
By forming a composite alternating layer structure on a copper substrate with an amorphous carbon layer chemically bonded to the copper substrate, the problems of high capacity, low cost and cycle stability of lithium-ion battery anode materials are solved, electrolyte wettability and ion conduction efficiency are improved, and the process flow is simplified.
CN121862696BActive Publication Date: 2026-07-17GOLDEN SOLAR (QUANZHOU) NEW ENERGY TECH CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2026-03-17
- Publication Date
- 2026-07-17
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Figure CN121862696B_ABST
Abstract
本发明属于负极材料技术领域，具体涉及一种负极材料及其制备方法和应用，包括依次设置的含铜衬底、复合交替层、硅碳复合层，复合交替层包括至少一层非晶碳层、至少一层非晶硅层，且非晶碳层和非晶硅层交替形成，且复合交替层中所含的位于最内侧的非晶碳层与含铜衬底相互接触并进行化学键连接，与含铜衬底接触的非晶碳层的厚度为5‑100 nm。本发明的结构无需传统金属保护层，具有优异的导电性与抗腐蚀性，简化工艺，降低整体成本，同时能够改善电解液浸润性与离子导通效率，提升倍率性能与循环寿命，电池的容量提升，循环稳定性增强，材料成本低。
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Citation Information
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